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Статья

A Plasmonic Ag–AgBr/Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>Composite Photocatalyst with Enhanced Visible-Light Photocatalytic Activity

Lei JinSchool of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, People’s Republic of ChinaGangqiang ZhuSchool of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, People’s Republic of ChinaMirabbos HojamberdievMaterials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, JapanXiancong LuoSchool of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, People’s Republic of ChinaCongwei TanSchool of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, People’s Republic of ChinaJianhong PengCollege of Physics and Electronic Information Engineering, Qinghai University of Nationalities, Xining 810007, People’s Republic of ChinaXiumei WeiSchool of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, People’s Republic of ChinaJinping LiSchool of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, People’s Republic of ChinaPeng LiuSchool of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, People’s Republic of China
2014en
ABI

Аннотация

A plasmonic Ag–AgBr/Bi2O2CO3 composite photocatalyst was prepared by a two-step synthesis method. The as-prepared Ag–AgBr/Bi2O2CO3 was characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray, X-ray photoelectron, ultraviolet–visible diffuse reflection, and photoluminescence spectroscopy. As probe pollutants, rhodamine B (RhB) and methylene blue (MB) were adopted to investigate the photocatalytic activity of the Ag–AgBr/Bi2O2CO3 composite photocatalyst under visible light irradiation. The as-prepared photocatalyst showed an enhanced photocatalytic activity for the degradation of RhB and MB under visible light, which was attributed to the heterostructured Ag–AgBr/Bi2O2CO3 and surface plasmon resonance (SPR) exhibited by Ag nanoparticles. Simultaneously, high stability of the sample was also investigated by five successive photodegradations of RhB under visible light. The relationship between photocatalytic activity and the structure of Ag–AgBr/Bi2O2CO3 is discussed, and possible reaction mechanisms are also proposed.

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Идентификаторы

DOI
10.1021/ie502133x

Цитирования и источники

Цитирований: 7Использованных источников: 0
Показатели — AkademScholar